* {
    margin: 0;
    padding: 0;
    font-family: "Microsoft Yahei";
}

body {
    background: #f2f2f2;
}


/*包裹层*/

.warp {
    width: 640px;
    margin: 0 auto;
}


/*头部#4060d1*/

.header {
    background: #4a7a55;
    height: 95px;
    width: 640px;
    position: fixed;
    top: 0;
}

.return {
    float: left;
    background-size: 40px;
    width: 130px;
    height: 95px;
}

.return img {
    padding: 25px 35px 25px 35px;
    width: 45px;
    transition: background 0.5s, padding-left 0.5s, padding-right 0.5s;
}

.return img:hover {
    background: #900;
    padding-left: 5px;
    padding-right: 65px;
}


/*头部图片*/

.pic {
    height: 320px;
    background: url(../img/MyCsln.jpg);
    margin-top: 95px;
}

h1 {
    color: white;
    font-size: 38px;
    line-height: 95px;
    padding-left: 100px;
    text-shadow: 1px 1px 5px black;
}


/*中间正文部分*/

.content {
    width: 100%;
    overflow:hidden;
    background: white;
    border-bottom: 25px solid #4a7a55;
}

a {
    text-decoration: none;
}








/*底部返回顶部按钮*/

.ding a {
    display: block;
    width: 100px;
    height: 100px;
    background-color: #4a7a55;
    margin: 0 auto;
    position: relative;
}

.tr1 {
    width: 0px;
    height: 5px;
    border-left: 35px transparent solid;
    border-right: 35px transparent solid;
    border-bottom: 25px white solid;
    margin: 0 auto;
    position: absolute;
    left: 15px;
    top: 20px;
}

.tr2 {
    width: 0px;
    height: 5px;
    border-left: 35px transparent solid;
    border-right: 35px transparent solid;
    border-bottom: 25px white solid;
    position: absolute;
    left: 15px;
    top: 45px;
    transition: border 0.5s;
}

.tiaojian span{
    display: inline-block;
    float: left;
    font-size: 40px;
    margin: 5px;
}

.tiaojian{
    width:100%;
    overflow: hidden;
}

.tiaojian ul{
    list-style: none;
    margin-top: 20px;
    display: inline;
}
.tiaojian ul li{
    font-size: 40px;
    float: left;
}

.tiaojian ul li a{
    display: inline-block;
    width:120px;
    text-align: center;
    margin: 5px;
}

.selected{
    background:red;
    color:white;
}


